FLOOD PROPAGATION
Stampa
Anno immatricolazione
2017/2018
Anno offerta
2018/2019
Normativa
DM270
SSD
ICAR/02 (COSTRUZIONI IDRAULICHE E MARITTIME E IDROLOGIA)
Dipartimento
DIPARTIMENTO DI INGEGNERIA CIVILE E ARCHITETTURA
Corso di studio
CIVIL ENGINEERING FOR MITIGATION OF RISK FROM NATURAL HAZARDS
Curriculum
Hydrogeological risk assessment and mitigation
Anno di corso
Periodo didattico
Primo Semestre (24/09/2018 - 17/10/2018)
Crediti
6
Ore
48 ore di attività frontale
Lingua insegnamento
iNGLEsE
Tipo esame
SCRITTO E ORALE CONGIUNTI
Docente
PETACCIA GABRIELLA (titolare) - 6 CFU
Prerequisiti
cONOSCENZE DI IDRAULICA E MECCANICA DEI FLUIDI
Obiettivi formativi
Fornire le conoscenze necessarie all'utilizzo di modelli di propagazione delle piene di moto vario , mono e bidimensionalei. L'ultima parte del corso prevede l'utilizzo del Software ORSADEM
Programma e contenuti
Introduction: steady and unsteady flow, uniform and varied flow, pipe flow vs open channel flow

De Sant Venant equations (1d), divergent and non divergent form, supplementary terms and coefficients

Initial and boundary conditions

Discontinuous solutions: Bores

Simple wave, Dam break waves

Italian Regulations on Dam safety

Simplified channel flow equations

Numerical solution of the unsteady flow equations (method of characteristics, explicit and implicit

finite differences methods, numerical integration schemes: predictor corrector, flux splitting,

upwind and downwind; accuracy of the numerical method, stability analysis

Shallow water equations (2D)

Mesh generation (structured/non structured)

Simulation of flow in natural streams (1d vs 2D models, topological and hydraulic discretization,

some computational problems in rivers and floodplains, flooded area mapping techniques)

Models calibration and data needs

Flood wave propagation through hydraulic singularities

Introduction to the use of ORSADEM code

Case study: analysis of Sella Zerbino dam break (Italy)
Metodi didattici
Lezioni in Aula e esercitazioni in Laboratorio Informatico
Testi di riferimento
V.T. Chow 1959 Open Channel Hydraulics Mac Graw Hill Book , New York

J.A. Cunge, F.M. Holly, & A.Vervey, Practical aspects of Computational River Hydraulics. 1980.

Pitman Publ. Inc, London

K. Mahmood , V.Yevjevich 1975. Unsteady flow in open channel, Water Resources publications, Colorado, 1975.

H. Chanson 2004 The Hydraulics of Open Channel Flow: An Introduction, Second Edition,

Elsevier Oxford

T.W. Sturm. 2001. Open Channel Hydraulics, Mc Graw Hill, Singapore